Chain of custody receipt

Source #9631

Cryptographic attestation that the document below was captured in Goblin House's archive at the timestamp shown, with the hash listed. If the original URL goes dark or its content changes, this receipt remains as evidence of what the public record looked like at capture time.

TitleSEC EDGAR: filing — Alta Resource Technologies (2025-12-23)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22Alta%20Resource%20Technologies%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typeweb_search
Date2025-12-23
EntityAlta Resource Technologies
Captured2026-04-13T21:20:48.448Z UTC
Hash computed at2026-04-13T21:20:48.448Z UTC
SHA-2562aaa0c65f2870f3714b6f30db6fe117e9bf42e4d8b1a8945c88399cc2f0e58a7
Content length1,043 bytes
Content preview (first 800 chars) 
{"took":604,"timed_out":false,"_shards":{"total":50,"successful":50,"skipped":0,"failed":0},"hits":{"total":{"value":0,"relation":"eq"},"max_score":null,"hits":[]},"aggregations":{"entity_filter":{"doc_count_error_upper_bound":0,"sum_other_doc_count":0,"buckets":[]},"sic_filter":{"doc_count_error_upper_bound":0,"sum_other_doc_count":0,"buckets":[]},"biz_states_filter":{"doc_count_error_upper_bound":0,"sum_other_doc_count":0,"buckets":[]},"form_filter":{"doc_count_error_upper_bound":0,"sum_other_doc_count":0,"buckets":[]}},"query":{"_source":{"exclude":["doc_text"]},"query":{"bool":{"must":[{"match_phrase":{"doc_text":"Alta Resource Technologies"}}],"must_not":[],"should":[],"filter":[{"terms":{"root_forms":["4","SC 13D","SC 13G","DEF…

Verifying this receipt

The hash above was computed as:

sha256( coalesce(url, '<no-url>') || '\n' || raw_content )

Anyone with a copy of the original document can verify the match:

  1. Take the URL field and the original document content.
  2. Concatenate url + '\n' + content and SHA-256 it.
  3. Compare to the SHA-256 row above.

Or POST the candidate content to /source/9631/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/9631/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/9631/receipt.json